CVE-2025-61689: Juliaweb Http.jl

High severity, CVSS 8.7. EPSS: 0.3% chance of exploitation in the next 30 days.

HTTP.jl is an HTTP client and server functionality for the Julia programming language. Prior to version 1.10.19, HTTP.jl did not validate header names/values for illegal characters, allowing CRLF-based header injection and response splitting. This enables HTTP response splitting and header injection, leading to cache poisoning, XSS, session fixation, and more. This issue is fixed in HTTP.jl `v1.10.19`.

Affected products

• Juliaweb Http.jl: before 1.10.19 (fixed in 1.10.19)

Published 2025-10-10. Last modified 2026-06-17.